CVE-2024-4959 Frontend Checklist <= 2.3.2 - Admin+ Stored XSS via Items

Medium 4.8 Published Updated

Admin users can inject malicious scripts via checklist items in the Frontend Checklist plugin, bypassing unfiltered_html restrictions in multisite setups.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2024-4959?

CVE-2024-4959 is a medium-severity cross-site scripting vulnerability in Unknown Frontend Checklist, published on 26 Jun 2024. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

The Frontend Checklist WordPress plugin through 2.3.2 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

Weakness: CWE-79

Which versions are affected by CVE-2024-4959?

It affects 1 product.

Products include J-Breuer Frontend Checklist.

How do I fix CVE-2024-4959?

No fix has been published for CVE-2024-4959 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2024-4959 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-4959 exists.

Sources

Also known as GHSA-c2f6-2qgv-549c.

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